Let's say someone is spotlighting on your property at night with a loaded gun.
Are they hunting at night?
Or,
Are they just looking around and happen to be trespassing?
That's a pretty big stretch there.
You don't have a constitutional right to shine a light on other people's property and you don't have a right to trespass. Both can be illegal under the right circumstances.
Possession of a loaded firearm while committing those acts is only additional evidence that can be used in determining whether a crime has been committed. Are they checking power lines for an outage, fixing to commit a burglary of your home, are they night hunting, are they just turning around in the road ... you name it.
The mere possession of a loaded firearm does not define illegal hunting. That's the point you are missing. Sarah Brady don't get it either.